<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>demo 2-23</title>
	</head>
	<body>
	</body>
	<script>
		function add(x,y){
			return x + y;
		}
		const numbers = [4,38];
		let result=add(...numbers);
		console.log(result);
	</script>
</html>